Topics: Backup & restore, Spectrum Protect

Spectrum Protect / TSM: Display deduplicaton bytes pending removal

There are numerous show commands available for IBM Spectrum Protect / TSM, that will display information about the environment. Many of them aren't as well documented, probably because IBM intends to use these commands for their own support.

Quite a lot of these commands have been documented by Spectrum Protec / TSM users, and an example can be found on the following web site: http://www.mm-it.at/de/TSM_Show_Commands.html.

A very interesting show command, that can be used to display the amount of deduplicate bytes pending removal, is the following command:

tsm: TSM>show deduppending file_disk
ANR1015I Storage pool FILE_DISK has 7,733,543,532,121 duplicate bytes pending removal.
The command above shows the number of byes for storage pool "FILE_DISK" still to be removed by the dedupe processes.

The command may take quite some time to run, up to 10 minutes, so please be patient when issuing this command.



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